-- Acme Packet helped TXU accelerate deployment by mitigating
interoperability issues between an IP contact center platform and SIP
endpoints provided by two different vendors, and by enabling a
straightforward transition from legacy H.323 connections to more
efficient SIP-based connections to outsourcers, which are used to
supplement capacity.

-- By replacing conventional public switch telephone network (PSTN)
circuits with SIP trunks, the company has reduced operating expenses
and improved service agility. The Net-Net Enterprise Session Director
protects and controls SIP trunking borders and enables TXU to utilize
two distinct SIP trunk service providers to ensure high availability
and optimize costs.

TXU Energy offers a variety of innovative products and solutions,
allowing both its residential and business customers to choose
options that best meet their needs, including exceptional customer
service, competitively priced electricity service plans, innovative
energy efficiency options, renewable energy programs and other
electricity-related products and services. Visit txu.com for more
information about TXU Energy.

About Acme Packet
Acme Packet (NASDAQ: APKT), the leader in session delivery network
solutions, enables the trusted, first-class delivery of
next-generation voice, video, data and unified communications
services and applications across IP networks. Our Net-Net product
family fulfills demanding security, service assurance and regulatory
requirements in service provider, enterprise and contact center
networks. Based in Bedford, Massachusetts, Acme Packet designs and
manufactures its products in the USA, selling them through over 309
reseller partners worldwide. More than 1,850 customers in 109
countries have deployed over 20,000 Acme Packet systems, including 89
of the top 100 service providers and 48 of the Fortune 100. For more
information visit www.acmepacket.com.

Acme Packet, Inc. Safe Harbor Statement
Statements contained herein that are not historical fact may be
forward-looking statements within the meaning of Section 27A of the
Securities Act of 1933 and Section 21E of the Securities Exchange Act
of 1934. Such forward-looking statements may relate to, the benefits
of our products and solutions, including cost savings and
flexibility. Such forward-looking statements do not constitute
guarantees of future performance and are subject to a variety of
risks and uncertainties that could cause actual results to differ
materially from those anticipated or suggested in any forward-looking
statements are contained in the Company's recent filings with the
Securities and Exchange Commission, including those factors discussed
under the caption "Risk Factors" in such filings.